{"id":"CVE-2026-77609","summary":"Semantic MediaWiki has an open redirect in Special:URIResolver","details":"Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, `Special:URIResolver` resolves its user-controlled subpage to a MediaWiki title and issues an HTTP 303 redirect to `$title-\u003egetFullURL()` without validating the resolved target. A crafted subpage can make that target point off-host: an interwiki prefix redirects to the foreign wiki (for example `Special:URIResolver/mw-3AFoo`, which decodes to `mw:Foo`, redirects to `https://www.mediawiki.org/wiki/Foo`), and where the resolved URL carries an authority the target can even embed `user:pass@host` credentials. The result is an open redirect to an attacker-influenced host, usable for phishing from a trusted wiki URL. Version 7.2.0 fixes the issue.","aliases":["GHSA-hw3m-8j5x-94ff"],"modified":"2026-09-20T11:47:26.864038964Z","published":"2026-09-18T16:52:16.291Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77609.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-601"]},"references":[{"type":"WEB","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.2.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77609.json"},{"type":"ADVISORY","url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-hw3m-8j5x-94ff"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77609"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/semanticmediawiki/semanticmediawiki","events":[{"introduced":"0"},{"fixed":"0d11c070bbe64f4425e3ab8be89eefa926dd9e4e"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"7.2.0"}]}}],"versions":["7.1.0","7.0.0","6.0.1","6.0.0","5.1.0","5.0.2","5.0.1","5.0.0","4.2.0","4.1.3","4.1.2","4.1.1","4.1.0","4.0.2","4.0.1","4.0.0","3.2.0","3.2.0-rc.1","3.2.0-rc.2","3.1.0","3.1.0-rc.1","3.0.0","3.0.0-rc.2","3.0.0-rc.1","2.5.0","2.5.0-rc.1","2.4.0","2.4.0-RC1","2.3.0","2.3.0-RC1","2.1.0-RC1","2.0-RC3","2.0-RC2","2.0-RC1","1.9.2","1.9.1.1","1.9.1","1.9.0.2","1.9.0.1","1.9","1.9-RC1","1.9beta1","1.8beta2","1.8beta1","1.7.1","1.7.0.2","1.7.0.1","1.7","1.6.1","1.6","1.5.6","1.5.5","1.5.4","1.5.3","1.5.2","1.5.1","1.5","1.4.3","1.4.2","1.4.1","1.4","1.3","1.2.2","1.2.1","1.2","1.1.2","1.1.1","1.1","1.0.1","1.0","0.7","0.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77609.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}